A woman and two children have been found dead at a house, police said.
The 34-year-old woman and two girls, aged nine and four, were discovered at a property in Midcroft, Ruislip, at 6.40pm last night.
Scotland Yard said that detectives from the Homicide and Serious Crime Command were investigating.
At this stage, the deaths are being treated as unexplained and next of kin have been informed.
More top news
Investigators are trying to work out the cause of a fire at a homeware shop in south-east London.
Stanislaw Skupian crossed the finish line with legitimate runner Jake Halliday’s number.
Female guests wore everything from jungle scenes to bottles of champagne and even a lobster on their heads.